Abdominal strengthening apparatus

ABSTRACT

An abdominal strengthening apparatus with rocking base. The apparatus comprises a rocking base, a supporting member, a handlebar and a foot supporting bar. The rocking base of the apparatus comprises a first tilting rod and a second tilting rod both the rods are connected coaxially to mounting rod at one end and to the foot-supporting bar. The connection of first tilting rod and second tilting rod to mounting rod is made via a bracket and a plurality of screws. The user grasps the handlebar and exerts the user&#39;s body weight onto the handlebar. The force on the handlebar forces the supporting member downward to lever the foot-supporting bar. Therefore, the user engages the user&#39;s core muscles through use of the user&#39;s body weight to strengthen the user&#39;s core muscles. The rocking base of the apparatus further provide 3 holes from the bracket to select the desire force in order to increase and decreases tensions, strain to muscle and better toning and strengthening of muscle achieved.

CROSS REFERENCE TO RELATED APPLICATIONS

This application repeats a substantial portion of prior application Ser.No. 15/187,564, filed on Jun. 20, 2016, and adds disclosure notpresented in the prior application. Because this application names theinventor or at least one joint inventor named in the prior application,it may constitute a continuation-in-part of the prior application.Should applicant desire to claim the benefit of the filing date or theprior application, attention is directed to 35 U.S.C. 120, 37 CFR 1.78,and MPEP § 211 et seq.

TECHNICAL FIELD

The present invention relates generally to fan abdominal musclestrengthening apparatus, and more particularly to an abdominal musclestrengthening apparatus which allows the user to perform plurality ofabdominal exercise to strengthen various abdominal muscles by using bodyweight resistance training from the push and lift motion.

BACKGROUND

Exercise is an important aspect of maintaining a person's generalhealth. Exercise promotes confidence and provides energy to a person, aswell as, tones and strengthens muscles. While a majority of exercisesare performed without the aid of equipment, exercise equipment assistsin prompting proper form for performing the exercises. Proper formallows the person to gain the most from the exercises, as performing theexercise with proper form engages all of the targeted muscles for theexercise. Thus, the person is able to maximize the potential of theirexercise. This abdominal contraction exercise training method is designto work the entire ab and core group using resistance bodyweighttraining from the weight of the legs on the foot pedals to generate theresistance force when pushing the rod downward, and providing theresistance tension to the workout so the user get the most of their aband core workout effectively.

Some may argue that core strength, abdominal and oblique muscles, is oneof the most important muscle groups to strengthen. Having good corestrength helps to prevent injuries, protects inner organs and thecentral nervous system, assuages back pains, promotes good posture, andgives a sense of confidence to a person.

There is a need to develop an abdominal strengthening apparatus toovercome the above problems by offering a unique and effectivebodyweight training to engage the abdominal and core methods.

SUMMARY

The present invention allows a user to perform sitting crunches. Thepresent invention provides resistance to the sitting abdominal crunchingmotion in order to maximize the strengthening potential for exercisingthe user's core muscles.

In view of the foregoing, an embodiment herein provides an abdominalstrengthening apparatus with rocking base.

An embodiment herein describes an abdominal strengthening apparatus. Theapparatus comprising a rocking base with resistance bracket, asupporting member, a handlebar and a foot supporting bar. The rockingbar comprises a first tilting rod and a second tilting rod. The firsttilting rod and the second tilting rod are connected coaxially of boththe tilting rods to a mounting rod at one end. The connection toadjustable tube is made via a bracket and a plurality of screws. Thebracket comprises a plurality of holes for insertion of the plurality ofscrews. The supporting member comprises an adjustable tube and themounting rod. The handlebar is adjacently connected to the adjustabletube and is positioned opposite to the rocking base, along theadjustable tube. The handlebar has at least two positions. The footsupporting bar is attached with a pair of foot paddles along the footsupporting bar in opposite direction. The foot paddles and coaxialconnection to the mounting rod remain in same plane.

In one of the embodiment, the adjustable tube is mounted to “V” shapedhandle. In an embodiment, the adjustable tube is mounted to “T” shapedhandle. In another embodiment, the first and second tilting rod of therocking base are upwardly curved and joined at both end having maximumdistance in middle forming a rolling support on ground for partialrolling and tilting.

In one of the embodiment, the space formed between the first and thesecond tilting rod is convex. In an embodiment, the upper curvatureformed of the first and second tilting rod is concave. In anotherembodiment, the periphery of the curved tilting rod rolling and tiltingeffect with handle and foot movement. Yet in another embodiment, theadjustable tube is telescopically engaged with the mounting rod.

In one of the embodiment, the mounting rod and the foot-supporting barare positioned opposite to each other along the rocking base. In anembodiment, the foot pedals are positioned opposite to each other alongthe foot-supporting bar. In another embodiment, the apparatus has arotation mechanism. The rotation mechanism is mechanically integratedalong the adjustable tube and is positioned between mounting rod andhandlebar, a rotation axis of the rotation mechanism being collinear tothe mounting rod.

In one of the embodiment, the mounting rod is connected to the rockingbase through the rotation mechanism, wherein the rotation mechanism ispositioned opposite to the adjustable tube alone the mounting rod. In anembodiment, the adjustable tube comprises a first tubular portion and asecond tubular portion. In another embodiment, the first tubular portiontelescopically engaging the mounting rod and the second tubular portionis connected to the handlebar. The first tubular portion is hingedly andadjacently connected to the second tubular portion.

In an embodiment, the tension cord further comprises a first cord and asecond cord. The first tubular portion is hingedly and adjacentlyconnected to the second tubular portion. The second cord end isinternally mounted to the second tubular portion. In another embodiment,a pair of V shaped hand grips is fixed to the handlebar, the hand gripsare positioned opposite to each other along the handlebar. In anotherembodiment, the base of the abdominal strengthening apparatus is arocking base. In another embodiment, the base of the abdominalstrengthening apparatus is a stationary base. In another embodiment,first position of the handlebar is U-shaped. In another embodiment, thesecond portion of the handlebar is T-shaped.

In one of the embodiment, the rocking base supports apparatus positionedon a level ground and floor. In another embodiment, a rocking basemechanism comprises first pushing the handle grip downwards then bymoving the back of the rocking base downwardly to force the front of therocking base to lift upwardly and finally by creating the resistance tothe exercise by using the legs weight of a user. In another embodiment,the apparatus comprises a 3 holes U shaped bracket to offer three 3different level of resistance tension.

In one of the embodiment the bracket is located, at the coaxial positionat which both the tilting rods are connected to mounting rod. In anembodiment, the three different resistance tensions are a light tension,a medium tension and a hard tension. In another embodiment, the lighttension is achieved when U shaped bracket is adopted to connect rockingbase to mounting rod through back hole. In another embodiment, themiddle tension is achieved when U shaped bracket is adopted to connectrocking base to mounting rod through center hole. In another embodiment,the hard tension is achieved when U shaped bracket is adopted to connectrocking base to mounting rod through front hole.

These and other aspects of the embodiments herein will be betterappreciated and understood when considered in conjunction with thefollowing description and the accompanying drawings. It should beunderstood, however, that the following descriptions, while indicatingpreferred embodiments and numerous specific details thereof, are givenby way of illustration and not of limitation. Many changes andmodifications may be made within the scope of the embodiments hereinwithout departing from the spirit thereof, and the embodiments hereininclude all such modifications

BRIEF DESCRIPTION OF THE DRAWINGS

The embodiments herein will be better understood from the followingdetailed description with reference to the drawings, in which:

FIG. 1 illustrates an abdominal strengthening apparatus with rockingbase;

FIG. 2 illustrates a rotation mechanism of the abdominal strengtheningapparatus;

FIG. 3 illustrates a foldable abdominal strengthening apparatus;

FIG. 4 illustrates a front view of the abdominal strengtheningapparatus;

FIG. 5 illustrates a back left side view of the abdominal strengtheningapparatus;

FIG. 6 illustrates a right view of the abdominal strengtheningapparatus;

FIG. 7 illustrates a left view of the abdominal strengthening apparatus;

FIG. 8 illustrates a bottom view of the abdominal strengtheningapparatus; and

FIG. 9 illustrates a top view of the abdominal strengthening apparatus.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The embodiments herein and the various features and advantageous detailsthereof are explained more fully with reference to the non-limitingembodiments that are illustrated in the accompanying drawings anddetailed in the following description. Descriptions of well-knowncomponents and processing techniques are omitted so as to notunnecessarily obscure the embodiments herein. The examples used hereinare intended merely to facilitate an understanding of ways in which theembodiments herein may be practiced and to further enable those of skillin the art to practice the embodiments herein. Accordingly, the examplesshould not be construed as limiting the scope of the embodiments herein

The embodiments herein achieve this by providing an abdominalstrengthening apparatus with rocking base.

FIG. 1 describes an abdominal strengthening apparatus with rocking base.The apparatus comprises a rocking base 2, a supporting member 4, ahandlebar 6 and a foot supporting bar 8. The rocking base 2 supports thepresent invention on a level ground or floor. The rocking base 2 isfurther comprises a first tilting rod 12 and a second tilting rod 14.The supporting member 4 is further comprises an adjustable tube 20 and amounting rod 18. Both the tilting rods are connected co-axially to themounting rod 18 at one end. The other end is connected to the footsupporting bar 8 at which one pair of foot pedals 26 attached inopposite direction. The foot paddles 16 and coaxial connection to themounting rod 18 remain in same plane. The connection of both the tiltingrods and mounting rod 18 is made via a bracket 36 and a plurality ofscrews 38. The bracket comprises a plurality of holes for insertion ofthe plurality of screws 38. The handlebar 6 being adjacently connectedto the adjustable tube 20, the handlebar 6 being positioned opposite tothe rocking base 2, along the adjustable tube 20, wherein the handlebar6 has at least two positions. The supporting member 4 allows the user touse their arms and shoulders to transfer force from the handlebar 6 toboth the tilting rods. The rocking base 2 lifts the user's legs,therefore forcing the user's upper abdominal muscles and lower abdominalmuscles to be engaged. The supporting member 4 comprises a mounting rod18 and an adjustable tube 20. The mounting rod 18 connects the handlebar6 to both the tilting rod through the adjustable tube 20. The mountingrod 18 is pivotably connected to both the tilting rods such that theorientation of the mounting rod 18 is maintained as the tilting rods aredepressed local to the mounting rod 18.

FIG. 2 describes a rotation mechanism 10. The rotation mechanism 10allows the handlebar 6 to be rotated about the mounting rod 18, suchthat the user is able to engage the oblique muscles effectively byrotating the user's torso during the abdominal crunching motion. Therotation mechanism 10 is mechanically integrated along the adjustabletube 20. The rotation mechanism 10 is positioned between the mountingrod 18 and the handlebar 6. A rotation axis 28 of the rotation mechanism10 is collinear to the mounting rod 18. As the user grasps the handlebar6 and presents the downward force onto the supporting member 4, the useris able to rotate the user's torso from side to side in order to engagethe oblique muscles during the abdominal crunching motion, strengtheningthe oblique muscles.

In another embodiment of the present invention, the rotation mechanismallows the supporting member to be rotated, such that the user is ableto engage the oblique muscles effectively by rotating the user's torsoduring the abdominal crunching motion. The mounting rod is pivotablyconnected to the first tilting rod and second tilting rod through therotation mechanism. The rotation mechanism is positioned opposite to theadjustable tube along the mounting rod. A rotation axis of the rotationmechanism is collinear to the mounting rod. As the user grasps thehandlebar and presents the downward force onto the supporting member,the user is able to rotate the user's torso from side to side in orderto engage the oblique muscles during the abdominal crunching motion,strengthening the oblique muscles as the supporting member rotates alongwith the user's motion.

In FIG. 3 describes a side view of the abdominal strengtheningapparatus. The tension cord 30 tethers the first tubular portion 22 tothe second tubular portion 24 to prevent the second tubular portion 24from being disconnected from first tubular portion 22 as the secondtubular portion 24 is pulled away from the first tubular portion 22. Thetension cord 30 comprises a first cord end 32 and a second cord end 34.The first cord end 32 is internally mounted to the first tubular portion22. The second cord end 34 is internally mounted to the second tubularportion 24. Thus, the tension cord 30 allows the second tubular portion24 to be dislodged from the first tubular portion 22 while preventingthe second tubular portion 24 from being disconnected from the firsttubular portion 22.

FIG. 4 and FIG. 5 shows a front view and a back view of the abdominalstrengthening apparatus respectively. FIG. 6 and FIG. 7 shows a rightview and a left view of the abdominal strengthening apparatusrespectively. FIG. 8 and FIG. 9 shows a bottom view and a top view ofthe abdominal strengthening apparatus respectively.

The adjustable tube allows the user to change the length of thesupporting member to accommodate the height of the user. The adjustabletube is telescopically engaged with the mounting rod such that the useris able to adjust the length of the supporting member between discreteheights. The adjustable tube is positioned opposite to one end of boththe tilting rods, along the mounting rod, such that the handlebar isable to be conveniently accessed by the user. The handlebar isadjacently connected to the adjustable tube in order to allow the userto grasp the present invention and make use of the user's own bodyweight to provide a downward force on the supporting member. Thehandlebar is positioned opposite to both the tilting rods along theadjustable tube in order to transfer the downward force along thesupporting member.

In an embodiment the apparatus comprises of a U shaped bracket. Themounting rod and both the tilting rods are joined by a U shaped bracket,wherein the bracket comprises 3 holes for three different level ofresistance tension at three different positions. The bracket is located,at the coaxial position at which both the tilting rods are connected tomounting rod. The position of rocking base can be changed by changingposition of screw at three different holes of bracket at coaxialposition along the mounting rod. The increase and decrease of resistancetension is achieved by moving three different position of point ofconnection of the rocking base. The three different resistance tensionsare a light tension, a medium tension and a hard tension. The rockingbase is attach to mounting rod by back hole to bring light tensionresistance, to center hole to bring medium tension and to front hole tobring hard tension.

The foot-supporting bar supports the user's feet during implementationof the present invention. The foot supporting bar is connected to thesecond end of both the tilting rods. The mounting rod and thefoot-supporting bar are positioned opposite to each other. As thedownward force from the user is placed on the supporting member, thefirst tilting rod and second tilting rod rotates along the ground levelor floor in order to simultaneously raise the foot-supporting bar. Thus,through the downward force from the user's weight, the user's knees areforced towards the user's chest while the user's chest is motionedtowards the user's knees, engaging the user in a abdominal crunchingmotion to engage the user's core muscles.

In another embodiment the adjustable tube comprises a first tubularportion and a second tubular portion, the first tubular portiontelescopically engages the mounting rod. The second tubular portion isconnected to the handlebar. In one embodiment of the adjustable tube,the first tubular portion is hingedly and adjacently connected to thesecond tubular portion such that the second tubular portion is able tobe positioned between the mounting rod and the rocking base. The firsttubular portion and the second tubular portion allow the adjustable tubeto be foldable for storage or transportation by allowing the handlebarto be positioned between the rocking base and the mounting rod. Whenuser pushes the rod downward and legs lift up, forcing the upper abs andobliques and lower abs and obliques abdominal and core muscle group tofully contract, that's how the exercise is created.

The rocking base of the apparatus works by using user own body weightfrom the legs on the foot pedals, using the force to contract theabdominal muscle group when push the V Handle Grip downward.

Rocking base provides strengthening of abdominal muscle better thanstatic base by pushing down the V handle grip downward it force to liftup to legs upward creating the abdominal muscle group contract from theupper and lower abdominal and oblique muscle group, same exercisetechnique apply when pivoting the handle grip to contact the obliquemuscle group. (Push the run the shoulders to perform the oblique muscleexercises). Same procedure is applied when T BAR-handle grip is used.

In an embodiment, the stationary base is alternatively used in abdominalstrengthening apparatus. The stationary base comprises a first basemember, a second base member, and a mounting bracket. The first basemember and the second base member provide structural support for thepresent invention. The mounting bracket supports the rocking base. Thefirst base member is perpendicularly connected to the second basemember. The second base member is terminally positioned to the firstbase member, such that the first base member and the second base memberform a stable base for the present invention. The mounting bracket iscentrally connected along the first base member. The tilting arm ispivotably connected to the mounting bracket, such that the mounting rodis able to translate towards or away from the stationary base in orderto allow the user to perform sitting crunches. The tilting arm ispositioned co-planar to the first base member such that the tilting armis positioned above the first base member. The tilting arm is connectedto the mounting bracket between the foot supporting bar and the mountingbracket, such that the mounting bracket is a fulcrum for the tiltingarm.

In one embodiment, the mounting bracket is permanently connected to thefirst base member. The mounting bracket is welded onto the first basemember in order to retain the connection between the mounting bracketand the first base member.

In another embodiment of the mounting bracket is removably connected tothe first base member. The removable connection between the mountingbracket and the first base member allows for the stationary base to bedisassembled and stored more conveniently. The configuration also allowsthe stationary base to be modular such that the mounting bracket is ableto be replaced if the mounting bracket were to fracture or otherwiseinoperable. The mounting bracket comprises a first bracket member, asecond bracket member. The first bracket member engages the secondbracket member about the first base member. The tilting arm ispositioned between the first bracket member and the second bracketmember such that the tilting arm is able to pivot about the pivotableconnection between the tilting arm and the mounting bracket.

In one of the embodiment, an elastic resistance mechanism providestension between the stationary base and the foot-supporting bar. Theelastic resistance mechanism is mounted to the stationary base. Theelastic resistance mechanism is selectively tethered to thefoot-supporting bar. In another embodiment, the elastic resistancemechanism is mounted onto the first base member. As an example of thisembodiment, the elastic resistance mechanism is an elastic cord and ahook. The hook is adjacently connected to the first base member oppositeto the mounting bracket. The elastic cord is selectively tetheredbetween the hook and the foot-supporting bar, such that the user is ableto add or remove the resistance in accordance to their preference. Inanother embodiment, the elastic resistance mechanism comprises a pulley.The pulley is mounted onto the second base member. The pulley rotatablyengages the elastic cord in order to reduce friction and to redirect thedirection of force along the elastic cord. As the foot-supporting bar isforced away from the stationary base as the user forces weight onto themounting rod, the elastic cord resists the force from the user's weightin order to engage the user's core abdominal muscles to a greater extentthan the user's weight alone.

In another embodiment of the elastic resistance mechanism, the elasticresistance mechanism is an elastic ring. The elastic resistancemechanism is mounted across the second base member, such that theelastic ring is oriented parallel to the foot-supporting bar. A hook iscentrally mounted onto the foot-supporting bar and the hook is orientedtowards the stationary base. The elastic ring is selectively engagedwith the hook such that the user is able to add or subtract resistancein accordance to their preference by tethering the elastic ring to thehook or removing the elastic ring from the hook. As an additional meansof providing resistance to the user, one embodiment of the presentinvention allows the user to adjust the fulcrum point of the mountingbracket onto the tilting arm. In one of the embodiment, the apparatuscomprises a pivoting pin, the mounting bracket comprises a supportaperture, and the tilting arm comprises a plurality of moment-adjustingapertures. The plurality of moment-adjusting apertures allows the userto discretely adjust the fulcrum point along the tilting arm, such thatthe amount of force on the mounting rod to raise the foot-supporting baris increased or decreased in accordance to the user's preference. Theplurality of moment-adjusting apertures laterally traverses into throughthe tilting arm. The plurality of moment adjusting apertures iscentrally positioned along the tilting arm. The plurality ofmoment-adjusting apertures is positioned perpendicularly to the mountingrod. The plurality of moment-adjusting apertures is offset from eachother. A selected aperture of the plurality of moment-adjustingapertures is concentrically positioned to the support aperture. Thepivoting pin engages the selected aperture and the support aperture inorder to support tilting arm and allow the tilting arm to pivot on themounting bracket.

Further in accordance to the preferred embodiment of the presentinvention comprises a locking pin in order to secure the adjustable tubeonto the mounting rod. The mounting rod comprises a height fixingaperture and the adjustable tube comprises a plurality of untingapertures. The locking pin secures the adjustable tube onto the mountingrod through an aperture of the plurality of mounting apertures and theheight-fixing aperture. The plurality of mounting apertures laterallytraverses through the adjustable tube. The plurality of mountingapertures is positioned opposite to the handlebar along the adjustabletube, and the plurality of mounting apertures is offset from each otherin order for the user to position the adjustable tube at discreteheights. The height-fixing aperture laterally traverses through themounting rod. The height-fixing aperture is positioned opposite to thetilting arm along the mounting rod in order to effectively engage theplurality of mounting apertures. The height-fixing aperture isconcentrically positioned to a selected aperture of the plurality ofmounting apertures. The locking pin engages the selected aperture andthe height-fixing aperture in order to secure the adjustable tube at adiscrete height for the user to comfortably implement the presentinvention.

In one of the embodiment, the present invention comprises a magneticsensor, a permanent magnet, and a computing device. The magnetic sensor,the permanent magnet, and the computing device allow the user to keeptrack of repetitions and time performing the exercise. The permanentmagnet is adjacently connected to the tilting arm. The permanent magnetis positioned between the foot supporting bar and the mounting bracket.The magnetic sensor is mounted onto the stationary base. The magneticsensor is electronically connected to the computing device. Thisconfiguration allows a magnetic field exerted by the permanent magnet tobe assessed by the magnetic sensor. The magnetic sensor, the permanentmagnet, and the computing device are in a repetition detection statewhen the permanent magnet is positioned adjacent to the magnetic sensorand the permanent magnet is magnetically engaged with the magneticsensor. When the magnetic sensor and the permanent magnet enter therepetition state detection state, the magnetic sensor transmits anoutput to the computing device to increment a repetition counter.

In one embodiment of the present invention, the output display iselectronically connected to the computing device in order to display therepetition counter value or the elapsed exercise time to the useraccordance. The output display is centrally connected to the handlebarsuch that the user is able to easily view the number of repetitions forthe exercise they have completed or the elapsed exercise time on theoutput display. Although the invention has been explained in relation toits preferred embodiment, it is to be understood that many otherpossible modifications and variations can be made without departing fromthe spirit and scope of the invention.

As mentioned, there remains the foregoing description of the specificembodiments will so fully reveal the general nature of the embodimentsherein that others can, by applying current knowledge, readily modifyand/or adapt for various applications such specific embodiments withoutdeparting from the generic concept, and, therefore, such adaptations andmodifications should and are intended to be comprehended within themeaning and range of equivalents of the disclosed embodiments. It is tobe understood that the phraseology or terminology employed herein is forthe purpose of description and not of limitation. Therefore, while theembodiments herein have been described in terms of preferredembodiments, those skilled in the art will recognize that theembodiments herein can be practiced with modification within the spiritand scope of the appended claims.

What is claimed is:
 1. An abdominal strengthening apparatus with rockingbase, the apparatus comprising: a rocking base with resistance bracket;supporting member; a handlebar; and a foot supporting bar, wherein therocking base comprises a first tilting rod and a second tilting rod, thefirst tilting rod and the second tilting rod are connected coaxially toa mounting rod at one end, wherein the first tilting rod and secondtilting rod are connected coaxially to foot supporting bar at other end,wherein the connection to the mounting rod is made via a bracket and aplurality of screws, wherein the bracket comprises a plurality of holesfor insertion of the plurality of screws, wherein the supporting membercomprises an adjustable tube and the mounting rod, wherein the handlebarbeing adjacently connected to the adjustable tube, the handlebar beingpositioned opposite to the rocking base, along the adjustable tube,wherein the handlebar has at least two positions. wherein the footsupporting bar is attached with a pair of foot paddles along the footsupporting bar in opposite direction, wherein the foot paddles andcoaxial connection to the mounting rod remain in same plane
 2. Theapparatus as claimed in claim 1, wherein the adjustable tube is mountedto “V” shaped handle.
 3. The apparatus as claimed in claim 1, whereinthe adjustable tube is mounted to “T” shaped handle.
 4. The apparatus asclaimed in claim 1, wherein the “V” and “T” shaped handles areinterchangeable to adjustable tube.
 5. The apparatus as claimed in claim1, wherein the first tilting rod and the second tilting rod of therocking base are upwardly curved joined at both end having maximumdistance in middle forming a rolling support on ground for partialrolling and tilting.
 6. The apparatus as claimed in claim 1, wherein thespace formed between the first and the second tilting rod is convex. 7.The apparatus as claimed in claim 1, wherein the upper curvature formedof the first and second tilting rod is concave.
 8. The apparatus asclaimed in claim 1, wherein the periphery of the curved tilting rodinduce rolling and tilting effect with handle and foot movement.
 9. Theapparatus as claimed in claim 1, wherein the adjustable tube istelescopically engaged with the mounting rod.
 10. The apparatus asclaimed in claim 1, wherein the mounting rod and the foot-supporting barare positioned opposite to each other along the rocking base.
 11. Theapparatus as claimed in claim 1, wherein the foot pedals are positionedopposite to each other along the foot-supporting bar.
 12. The apparatusas claimed in claim 1, wherein the apparatus has a rotation mechanism,wherein the rotation mechanism being mechanically integrated along theadjustable tube and is positioned between mounting rod and handlebar,wherein a rotation axis of the rotation mechanism being collinear to themounting rod.
 13. The apparatus as claimed in claim 1, wherein theadjustable tube comprises a first tubular portion and a second tubularportion.
 14. The apparatus as claimed in claim 9, wherein the firsttubular portion telescopically engaging the mounting rod and the secondtubular portion is connected to the handlebar, wherein the first tubularportion is hingedly and adjacently connected to the second tubularportion.
 15. The apparatus as claimed in claim 1, wherein a pair of Vshaped hand grips are fixed to the handlebar, the hand grips arepositioned opposite to each other along the handlebar.
 16. The apparatusas claimed in claim 1, the base of the abdominal strengthening apparatusis a rocking base with the three holes bracket.
 17. The apparatus asclaimed in claim 1, wherein the base of the abdominal strengtheningapparatus is interchangeable to a stationary base.
 18. The apparatus asclaimed in claim 1, wherein the rocking base supports apparatuspositioned on a level ground and floor.
 19. The apparatus as claimed inclaim 1, wherein the apparatus comprises of U shaped bracket havingthree holes for three different level of resistance tension.
 20. Theapparatus as claimed in claim 19, wherein the three different tensionsare light tension, medium tension and hard tension.